本标准适用于具有一体式框架的液压和机械动力压力机，该框架引导滑块并支撑靠垫、可调床或喇叭。框架被配置为提供对模具空间前部和侧面的无限制访问。这些机器通过连接在滑块、靠垫或喇叭上的模具或工具，用于剪切、冲压、成型或组装金属或其他材料。本标准仅包括以下类型的压力机:（a）工作台；（b） 开放式后倾（OBI）；（c） 开放式固定支架（OBS）；（d） 可调节床/喇叭。图1为压力机类型示例。

This Standard applies to hydraulic and mechanical power presses having a one-piece frame that guides the slide and supports the bolster, adjustable bed, or horn. The frame is configured to provide unrestricted access to the front and sides of the die space. By means of dies or tooling attached to the slide and bolster or horn, these machines are used to shear, punch, form, or assemble metal or other materials. This Standard includes only the following types of presses:(a) bench;(b) open back inclinable (OBI);(c) open back stationary (OBS);(d) adjustable bed/horn.See Fig. 1 for examples of press types.